Which of the statements given below is not true about cambial ring in trees?

The cells of vascular cambial ring cut off towards pith, mature into secondary xylem and the cells cut off towards periphery mature into secondary phloem.

The vascular cambium is generally more active on the outer side than on the inner.

At some places, the vascular cambium forms a narrow band of parenchyma, which passes through the secondary xylem and the secondary phloem called secondary medullary rays.

Cambial ring can assist in secondary growth both in dicots and gymnosperms.